The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2000
Filed:
Feb. 27, 1998
Adam Pawlowski, Eschenburg-Wissenbach, DE;
Simone Reuter, Schlierbach, DE;
Rittal-Werk Rudolf Loh GmbH & Co. KG, Herborn, DE;
Abstract
An improvement to the lock elements of a filter ventilator that is engaged in an opening in a fastening plate in such a manner that a housing part with an outer cross section that corresponds to the cross section of the opening includes a stop flange that limits insertion of a filter on the fastening plate and lock elements arranged on the outside of the housing part wherein the spring-like elements each have a free end attached to the housing part such that the free end is oriented toward a support surface on the rear side of the stop flange, the ends of the lock elements include a plurality of lock stages oriented in a stepped arrangement so as to form a locating section substantially perpendicular to the support surface and a lock section that is substantially parallel to the support surface where the lock sections include spaces of equal width and the locating sections are sized for varying thicknesses of fastening plates, and the lock stage nearest the support surface includes a space with respect to the center axis of the filter ventilator that is the same as or greater than the smallest corresponding dimension of opening in the fastening plate.